(Dol-po-pa Shes-rab Rgyal-mtshan 1292-1361), was one of the most
important and original thinkers in Tibetan history, and perhaps the greatest
expert on the tantric teachings of the Kalacakra, or Wheel of Time.
Tibetan Buddhist master Dolpopa Sherab Gyaltsen known simply as Dolpopa, the Tibetan Buddhist master known as The Buddha from Dolpo, is often seen as the founder of the Jonangpa tradition of Tibetan Buddhism. However, the doctrinal origins of the Jonangpa tradition in Tibet can be traced to early 12th century master Yumo Mikyo Dorje, but they became much wider known with the help of Dolpopa Sherab Gyaltsen.
He was born in the Dolpo region of modern Nepal but in 1309, when he was seventeen, he ran away from home to seek Buddhist teachings, first in Mustang, and then in Tibet.
Dolpopa became one of the most influential and controversial of Tibetan teachers. Originally a monk of the Sakya order, he developed the teaching on emptiness view known as Shentong (gzhan song), which is tied to the Tathagatagarbha tradition and the Indian Yogacara school.
He is considered to be one of the greatest exponents of the Kalachakra or Wheel of Time and a consummate practitioner of the Six Yogas:
Dolpopa was a practitioner of the Six-branch Yoga, the perfection stage practices of the Kalacakra Tantra, and although he based his doctrinal discussions upon scripture, in particular the Kalacakra related cycles, his own experience in meditation was crucial to the formulation of his theories.
From (Tibetan) Cyrus Stearns. The Buddha from Dolpo: A Study of the Life and Thought of The Tibetan Master Dolpopa Sherab Gyaltsen. State University of New York Press. 1999. 318 pp. Cloth: ISBN 0-7914-4191-1. Paper: ISBN 0-7914-4192-X.